1315322143 has 8 divisors (see below), whose sum is σ = 1324857600. Its totient is φ = 1305804888.

The previous prime is 1315322123. The next prime is 1315322161. The reversal of 1315322143 is 3412235131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315322143 is a prime.

It is a super-2 number, since 2×1315322143² = 3460144679732224898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315322123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162138 + ... + 170056.

It is an arithmetic number, because the mean of its divisors is an integer number (165607200).

Almost surely, 2^1315322143 is an apocalyptic number.

1315322143 is a deficient number, since it is larger than the sum of its proper divisors (9535457).

1315322143 is a wasteful number, since it uses less digits than its factorization.

1315322143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101.

The product of its digits is 2160, while the sum is 25.

The square root of 1315322143 is about 36267.3702244869. The cubic root of 1315322143 is about 1095.6639615609.

Adding to 1315322143 its reverse (3412235131), we get a palindrome (4727557274).

The spelling of 1315322143 in words is "one billion, three hundred fifteen million, three hundred twenty-two thousand, one hundred forty-three".